Free Antivirus Download
Zero-delay responseRansomware Recovery CenterHoneypot trapsFile restore via VSSCTI threat intelligenceWindows & Android24/7 local supportTransparent annual license
Download Free
The quickest way to download a free antivirus for Windows
You can download the Kalkhan Anti-Virus setup package from the official site at no charge.
Try Kalkhan for free now
Setup takes 2 minutes — real-time protection starts instantly. No credit card required.
Download Free TrialPricingWhy Kalkhan?
Domestic antivirus protection for Windows
Ransomware Protection
- Detects encryption behaviour in real time
- Intervenes at the moment of attack
Behavioural Analysis
- Recognises unsigned new threats by behaviour
- Zero-delay response
YARA Rules
- Fast and up-to-date threat matching
- USOM-integrated threat intelligence
Domestic & National
- Local interface and Türkiye-based support
- KVKK-compliant data processing
FAQ
Frequently asked questions about the free antivirus
Is Kalkhan anti-virus free?
- You can download the Kalkhan Anti-Virus setup package free of charge from kalkhan.com.tr. A trial edition is available at no cost; see the pricing page for current licensing details.
Is a free antivirus safe?
- Kalkhan is an antivirus developed domestically in Türkiye. Download the signed setup package only from the official site kalkhan.com.tr; files from third-party download sites are not trustworthy.
How do I download Kalkhan?
- Save the setup package from the download cards above, run it with a double click and follow the wizard. After installation the program automatically pulls the latest threat definitions.
What are the system requirements?
- Kalkhan Anti-Virus runs on Windows 10 and Windows 11. Detailed system requirements are listed on the product page.
Does the antivirus slow my computer down?
- Kalkhan is engineered to run in the background with a low resource footprint thanks to its optimised behavioural analysis engine; it causes no noticeable slowdown in daily use.
Does it protect against ransomware?
- Yes. Kalkhan Anti-Virus includes anti-ransomware protection that detects ransomware behaviour in real time. For details, read our ransomware guide.